Prevention of distal extension cantilever fracture in mandibular overdentures

• Published in: Journal of dentistry Vol. 43; no. 9; pp. 1140 - 1147
• Main Authors: Quirynen, Thomas, Quirynen, Marc, Duyck, Joke
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.09.2015; Elsevier Limited
• Subjects: Bar design; Bar extension fracture; CAD; Computer aided design; Conflicts of interest; Dental Prosthesis Design - methods; Dental Restoration Failure; Dental Stress Analysis - methods; Dentistry; Denture, Overlay; Design analysis; Economics; Finite Element Analysis; Finite element method; Fracture mechanics; Guidelines; Humans; Implant retained overdentures; Implant suprastructures; Laboratories; Mathematical analysis; Mechanical failures; Metallurgical considerations; Patient satisfaction; Prostheses; Prosthetic complications; Strength; Transplants & implants; Implant suprastructures; Metallurgical considerations; Mechanical failures; Prosthetic complications; Implant retained overdentures; Bar extension fracture; Bar design

Fractures of distal bar extensions, supporting a mandibular overdenture, do occur with significant functional and economic consequences for the patient. This study therefore aims to evaluate the effect of different bar cross-sectional shapes and surfaces, bar extension lengths and the placement of a...